Lock-nut.



" /R-. w. RIDER.

/ LOCK NUT.

APPLICATION FILED MAY 28, 19M.

Patented July 13, 1915.-

ROWLAND W.RIDER, OF LOGAN, UTAH.

LOCK-NUT.

Specification of Letters Iatent. Patentgd July 13,, 1915.

Application filed May 28, 1914. Serial No. 8 11,44 4.

To all whom it may concern:

Be it known that I, ROWLAND V. RIDER, a citizen of the United States,residing at Logan, in the county of Cache and State of Utah, haveinvented new and useful I1nprovements in Lock-Nuts, of which thefollowing is a specification.

The present invention relates to improvements in means for securelylooking a nut upon a bolt.

In carrying out my invention it is my purpose to provide a lockingdevice which may remain a permanent part of a nut and which willautomatically engage with the threads of the bolt when the said nut isscrewed entirely home upon thebolt and into contact with the plate orsurface to be engaged by the nut. I also aim to construct a lockingdevice which is arranged upon a nut in such a manner as to be normallysustained at an angle to the nut, the said device including a pin memberwhich passes through a suitable opening in the nut and is normallyarranged adjacent the bore of the nut, and which, when the nut isscrewed home, is forced by contact with the surface with which the nutengages to move or swing the locking member to force the pin within thebore of the nut to act upon the threads of the bolt engaged by the nut;

With these and other objects in view, the improvement resides in theconstruction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appendedclaims. In the drawings: Figure 1 is an elevation of a bolt having a nutarranged thereon and provided with a lock constructed in accordance withthe present invention, Fig. 2 is a central longitudinal sectional viewon the line 22 of Fig. 1 showing the nut locked upon the bolt, Fig. 3 isa similar sectional view but illustrating the arrangement of the partsof the look before the nut is screwed entirely home upon the bolt. oruntil the said nut is brought into contact with the washer or with theplate with which it is adapted to engage, Fig. 4 is a horizontalsectional view on the line 44 of Fig. 2, Fig. 5 is a similar sectionalView on the line 55' of Fig. 3, Fig. 6 is a detail perspective view ofthe locking member detached, Fig. 7 is'a similar view of the wedgemember, and Fig. 8 is a perspective view of the nut with the lockingmember removed therefrom. 7

Referring now to the drawings, the nusocket communicates with the rearor inner transverse wall of the slot 6, and the side walls of. the saidsocket are inclined inwardly toward the bore of the nut.

The numeral 8 designates the locking device in its entirety. Thislocking device is constructed of spring metal and comprises an arm 9which is adapted to be received within the slot 6, a base 10 beingformed upon the arm and extending in opposite directions therefrom.v.One of the lateral eX- tensions ofthe base which is. adapted to bearranged within the slot 6 has its end provided with an angularlydisposed lip 11 which is received within the socket 7 and which sustainsthe base 10 and the arm 9 at an angle with relation to the faceand sideof the nut provided, with the slots 5 and 7 .4 The arm 8 and the basewere constructed of comparatively heavy and strong metal, so that thesame willnormally swing upon the lip to angular position with relationto the nut and also whereby these members are effectively strengthened.The lip 11 is comparatively thin and more yieldable than the remainderof the lock, and the said lips 11 serve as a hinge or fulcrum from whichthe lock is suspended. The lip frictionally engages within thedepression or socket inthe nut so that the lock remains a part of thenut.

The numeral 12 designates a pin that passes through a transverse opening13 in one side of the'nut, the same'being arranged centrally of theinner wall of the slot 5. This pin 12 has an inner beveled engaging edge14, and thewidth of the said pin at its engaging edge agrees with thewidth of any of the threads of the nut or the distance between any twothreads of the nut. The lip 11 is arranged at only a slight angle withrelation to the base, the said angle being suflicient to permit of thebase 10 and arm 9 being arranged only a slight distance away from thenut, said distance equaling approximately one-half of the length of thebeveled engaging end 14; of the pin 12. It is to be noted that thebeveled or engaging edge of the pin 12 is arranged upon the said pin toengage with the threads of the bolt when the bolt or nut are rotated ina retrograde or unscrewing direction, and it is to be further noted thatthe pin 12 is loosely connected with the arm 9, so that the freelongitudinal. movement of the same within the opening 18 will not beinterfered with.

lVith an arrangement as described, the nut is screwed upon the bolt andis arranged in close proximity with the washer 4 before the base of thelocking member 9 contacts with the washer. A further rotary movement ofthe nut will cause the lower flat face of the base 10 to be arrangeddirectly upon the outer face of the washer 4 and as a consequence swingthe arm 8 so that the same will be fully inclosed within the slot 5 andits pin 12 forced through the opening 13 to bring its biting end 14 intoengagement with the threads of the bolt.

In order to permit of the separation of the nut from the bolt I providea wedge member 15, the same having its body provided with an elongatedslot 16 through which the pin 12 passes, and the upper or outer edge ofthe said wedge is formed with an offset lip or head 17. The member 15 isarranged within the slot 5, and is normally forced outwardly thereof sothat the lower transverse wall provided by its opening 16 will contactwith one of the faces of the pin 12 so as not to interfere with theoperation of the locking device. A blow upon the head 17 will cause thespring arm 9 to move outwardly of the slot 5 carrying with it the pin 12and bringing its engaging end 1 1 out of contact with the threads of thebolt, as will readily be understood.

It is, of course, to be understood that if desired the end of the pin12, which projects a slight distance beyond the outer face of the arm 8may receive an impact of force such as the blow from a hammer, in whichinstance, the sharpened end 14 of the pin will mutilate the threads ofthe bolt, it being understood that the pin 12 is constructed of somestrong, tough metal, such as Krupp or :larveyized steel.

From the above description, taken in connection with the accompanyingdrawings, the simplicity of the device, as well as the advantagesthereof will, it is thought, be perfectly apparent to those skilled inthe art to which such invention appertains without further detaileddescription.

Having thus described the invention, what I claim is:

1. The combination with a bolt and a nut therefor, of a lock having aresilient connection with the nut, said lock including a base and anarm, a pin connected with the arm and passing through an opening in thenut and having its end normally disposed cent the bore of the nut, thesaid lock member adapted to be normally sustained at angle with relationto the nut and to have its base portion disposed beyond the en ing faceof the nut.

2. The combination with a bolt and a nut therefor, of a lock memberformed of spring metal including a base and an arm, said base having aflexible connection with the inner face of the nut and normallysustained at an angle to the nut, a pin loosely connected with the armand arranged within an opening that communicates with the bore of thenut, and the said pin adapted when the angular member is forced intocontact with the nut to enter the bore thereof and engage with thethreads of the bolt.

8. In a means for locking a nut upon a bolt, a nut, a pin arrangedwithin a transverse opening in the nut, a spring member including an armand a laterally extending base, a loose connection between the arm andthe finger, a spring connection between the base and the nut adapted tonormally sustain the base and arm at an angle to the nut, and the end ofthe pin within the opening and out of the bore of the nut.

a. Means for automatically locking a nut to a bolt, including a nut anda bolt, a member comprising an arm having a base extending from bothsides of the arm, the base having one of its ends provided with anangular spring lip which is arranged within an angular socket in thebase of the nut, whereby the base and arm is normally sustained at anangle to the base and side of the nut, a pin arranged within the openingin the nut, and adapted, when the base and arm of the member are movedinto contact with the face and side of the nut to force one end of thepin through the opening to within the bore of the nut to contact withthe threads of the bolt.

5. A nut. lock, a bolt including a nut which engages with the bolt, saidnut haring an opening which enters its bore, a pin having a beveledengaging end within the opening, a right angular member connected withthe pin and having a spring connection with the nut whereby said memberwill be normally sustained at an angle with relation to the nut.

6. Means for looking a nut upon a bolt including a nut having atransverse o ening which enters its bore, a pin within the openinghaving a beveled engaging end, a lock member including an arm which isdisposed to one of the sides of the nut and connected with the pin, anda base which extends laterally from the arm, a flexible connectionbetween the base and one of the faces of the nut, whereby the base andarm of the mem ber are retained at an angle to the face and sides of thenut, and a slotted wedge member arranged upon the pin between the armand the side of the nut.

7. In a lock nut, a bolt and a nut therefor, the nut having a transverseopening which enters its bore, the side of the nut provided with theopening having a longitudinal slot, the base of the nut having a slotarranged at a right angle to and communicating with the first mentionedslot, said base of the nut having an angular socket which communicateswith the second mentioned slot, a pin arranged within the opening of thenut having a sharpened end, a lock member comprising an arm of a widthequaling the width of the slot at the side of the nut, a base portionextending in opposite directions from the arm and having one of itsextensions disposed within the slot in the base of the nut and the saidbase portion being of a width equaling the depth of the said slot, thebase portion having a reduced angular lip which is adapted to bereceived within the socket and to frictionally engage with the Wallsthereof, to sustain the said base and arm of the lock member at an angleto the nut and to sustain with the pin, said member having a laterallyextending portion of comparatively heavy material and one end of thesaid lateral portion having a loose connection with the base of the nut.

In testimony whereof I affiX my signature in presence of two witnesses.

ROWLAND "W. RIDER.

WVitnesses:

R. E. VAN DAM,

THOMAS RIDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

